WO2010073819A1 - 電動機の制御装置 - Google Patents

電動機の制御装置 Download PDF

Info

Publication number
WO2010073819A1
WO2010073819A1 PCT/JP2009/068784 JP2009068784W WO2010073819A1 WO 2010073819 A1 WO2010073819 A1 WO 2010073819A1 JP 2009068784 W JP2009068784 W JP 2009068784W WO 2010073819 A1 WO2010073819 A1 WO 2010073819A1
Authority
WO
WIPO (PCT)
Prior art keywords
inverter
motor
phase
short circuit
control device
Prior art date
Application number
PCT/JP2009/068784
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
靖之 檀上
今井　直樹
裕二 藤田
安楽　文雄
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42287444&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010073819(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to CN200980151526.7A priority Critical patent/CN102257724B/zh
Priority to EP09834623A priority patent/EP2372900A4/en
Priority to BRPI0923687-2A priority patent/BRPI0923687A2/pt
Priority to US13/139,353 priority patent/US8598826B2/en
Publication of WO2010073819A1 publication Critical patent/WO2010073819A1/ja

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
    • H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the present invention supplies power from a DC power supply through a switching element and a switch part including a free wheeling diode connected in parallel with the switching element on the positive electrode side and the negative electrode side of the arms of each phase. Control device for the motor.
  • FIG. 14 is a block diagram showing an internal configuration of HEV.
  • vehicle the driving force from the internal combustion engine (ENG) 107 and / or the motor (MOT) 101 is transmitted to the drive wheel 153 via the gear box 109 and the drive shaft 151. Be done.
  • the rotor of electric motor 101 is directly connected to the drive shaft of internal combustion engine 107. Therefore, when the internal combustion engine 107 is operated, the rotor of the motor 101 also rotates.
  • the internal combustion engine 107 generates a driving force (output torque) for the vehicle to travel.
  • An engine ECU (ENG ECU) 117 controls the operation of the internal combustion engine 107.
  • the motor 101 is, for example, a three-phase alternating current motor, and generates a driving force (output torque) for the vehicle to travel.
  • a motor ECU (MOT ECU) 119 controls the operation of the motor 101.
  • a storage battery (BATT) 103 is a DC power supply, and supplies power to the motor 101 via the inverter 105.
  • the output voltage of the storage battery 103 is a high voltage (for example, 100 to 200 V).
  • the inverter (INV) 105 converts the direct current from the storage battery 103 into a three-phase alternating current.
  • the inverter ECU (INV ECU) 111 controls the inverter 105.
  • the clutch 113 connects and disconnects the transmission path of the driving force from the internal combustion engine 107 and / or the motor 101 to the driving wheel 153 based on an instruction from the management ECU 115. If the clutch 113 is in the disconnected state, the driving force is not transmitted to the driving wheel 153, and if the clutch 113 is in the connected state, the driving force is transmitted to the driving wheel 153.
  • the gear box 109 is a transmission that converts the driving force from the internal combustion engine 107 and / or the electric motor 101 into the number of revolutions and torque at a desired gear ratio, and transmits it to the driving shaft 151.
  • the management ECU (MG ECU) 115 controls the internal combustion engine 107, the motor 101 and the inverter 105, instructs connection / disconnection to the clutch 113, instructs change of the transmission gear ratio to the gear box 109 and the like.
  • FIG. 15 is a block diagram showing a system for driving the motor 101 provided in the vehicle shown in FIG.
  • inverter 105 arms 1u, 1v, 1w corresponding to each phase (U phase, V phase, W phase) of electric motor 101 are in parallel with smoothing capacitor C between power supply terminals 2a, 2b. It is connected to the.
  • Each middle point of the arms 1 u, 1 v, 1 w is connected to a U-phase armature Au, a V-phase armature Av, and a W-phase armature Aw of the motor 101, respectively.
  • a switch portion composed of a switching element such as an IGBT or a MOSFET and a free wheeling diode connected in parallel to each switching element.
  • a switch portion 5a composed of a switching element 3a and a free wheeling diode 4a
  • a switch composed of a switching element 3b and a free wheeling diode 4b on the negative electrode side of each arm.
  • the collector of the switching element 3a provided on the positive electrode side of each arm and the cathode of the free wheeling diode 4a are connected to the power supply terminal 2a on the positive electrode side.
  • the emitter of the switching element 3b provided on the negative electrode side of each arm and the anode of the free wheeling diode 4b are connected to the power supply terminal 2b on the negative electrode side.
  • the positive electrode of the storage battery 103 is connected to the power supply terminal 2a on the positive electrode side via the contactor SW.
  • Each switching element is on / off controlled by a control signal from inverter ECU 111.
  • a gate resistance R is connected to the gate terminal of each switching element, and a control signal from the inverter ECU 111 is input to the gate terminal via the gate resistance R.
  • FIG. 16 is a diagram showing an example of the waveform of each phase current generated when the rotor of the motor 101 in the three-phase short circuit state is rotated by the driving of the internal combustion engine 107.
  • the inverter ECU 111 performs PWM control of the inverter 105 so that the two switching elements 3a and 3b of each arm of the inverter 105 do not simultaneously turn on (conductive state).
  • a state occurs in which both switch portions 5a and 5b of the arm including the switch portion in the short circuit failure state are simultaneously conducted.
  • transfer of electric power is performed between the capacitor 103 and the motor 101. Therefore, a large current (short circuit current) flows through both switch parts 5a and 5b of the arm including the switch part in the short circuit failure state.
  • the motor ECU 119 may not control the motor 101 at all when traveling by only the driving force from the internal combustion engine 107.
  • the inverter ECU 111 turns off all the switching elements of the inverter 105, and opens the contactor SW provided between the capacitor 103 and the power supply terminal 2a on the positive electrode side.
  • both switch parts 5a and 5b of the arm corresponding to one of the phases do not simultaneously become conductive, so the short circuit detection function of the invention described in Patent Document 1 does not detect a short circuit fault of inverter 105. .
  • the inverter ECU 111 does not perform the above-described three-phase short circuit control if a short circuit fault is not detected even though the inverter 105 is in a short circuit fault state, eventually a fault occurs in the motor 101 or the three phase line.
  • An object of the present invention is to provide a control device of a motor capable of detecting a short circuit fault of an inverter even when control of the motor is stopped.
  • a control device of a motor according to the invention of claim 1 includes switching elements (for example, switching elements 3a and 3b in the embodiment) and a parallel to the switching elements.
  • a switch unit (for example, switch units 5a and 5b in the embodiment) including a reflux diode (for example, the reflux diodes 4a and 4b in the embodiment) connected to each other is an arm of each phase (for example, in the embodiment) DC power supply (e.g., capacitor 103 in the embodiment) via a plurality of phase inverters (e.g., inverters 201 and 203 in the embodiment) provided on the positive electrode side and the negative electrode side of the arms 1u, 1v, 1w).
  • phase for example, in the embodiment
  • DC power supply e.g., capacitor 103 in the embodiment
  • phase inverters e.g., inverters 201 and 203 in the embodiment
  • Control device for a motor e.g., the motor 101 in the embodiment to which power is supplied from each of the phase electric currents flowing between the inverter and the motor.
  • a phase current detection unit for example, the phase current sensor 401 in the embodiment
  • a DC component derivation unit for example, the DC component derivation unit 501 in the embodiment
  • a short-circuit failure judging unit that judges that a short circuit failure has occurred in the inverter when at least one of the DC components of the phase current derived by the DC component deriving unit exceeds a threshold (for example, a short circuit in the embodiment
  • a failure determination unit 503 for example, a short circuit in the embodiment.
  • a switch switching control unit for example, a three-phase short circuit control unit 505 in the embodiment for turning off all the switching elements provided on the opposite pole side to the opposite pole of the switching element.
  • a current detection unit (for example, a current according to the embodiment) that detects a current flowing through two switching elements provided on the positive electrode side and the negative electrode side of each phase.
  • the switch switching control unit turns off all the switching elements on the pole side that are controlled to be ON when the detection units Seu, Sev, Sew, Se) are provided, and the current value detected by the current detection unit is equal to or greater than the threshold value. It is characterized in that all the switching elements on the pole side controlled and turned off are turned on.
  • a short circuit failure polarity judgment unit for example, a short circuit failure polarity judgment unit 507 in the embodiment for judging the polarity of the switch unit in which the short circuit failure has occurred;
  • a short circuit failure polarity judgment unit for example, a short circuit failure polarity judgment unit 507 in the embodiment for judging the polarity of the switch unit in which the short circuit failure has occurred;
  • a switching element for example, the switching elements 3a and 3b in the embodiment
  • a free wheeling diode connected in parallel with the switching element (for example, the embodiment)
  • Switch portions for example, the switch portions 5a and 5b in the embodiment
  • the reflux diodes 4a and 4b in the second embodiment are the positive electrode side of the arms of the respective phases (for example, the arms 1u, 1v and 1w in the embodiment)
  • a motor e.g., an implementation
  • a three-phase inverter e.g., the inverters 201 and 203 in the embodiment
  • a phase current detection unit for example, the phase current sensor 401 in the embodiment
  • a DC component deriving unit for deriving a DC component of each phase current for example, the DC component derivation unit 501 in the embodiment
  • the short circuit failure judging unit judges that a short circuit failure has occurred in the inverter when at least two of the direct current components of the three-phase current derived by the component deriving unit exceed the threshold (for example, the short circuit failure judgment in the embodiment) And a section 503).
  • the short circuit failure judging unit judges that the short circuit failure has occurred in the inverter when all of the DC components of the three-phase current exceed the threshold. If two of the DC components of the three-phase current exceed the threshold, it is determined that a short circuit failure has occurred in the inverter, and one of the sensors constituting the phase current detection unit has failed. It is characterized by judging.
  • all the switching elements provided on any one of the positive electrode side and the negative electrode side among the switching elements included in the inverter are controlled to be on and controlled.
  • a switching control unit is provided to turn off all the switching elements provided on the side opposite to the pole of the switching element.
  • a current detection unit for detecting current flowing through two switching elements provided on the positive electrode side and the negative electrode side of each phase is provided, and detection is performed by the current detection unit.
  • the switch switching control unit turns off all switching elements on the pole side that are on controlled, and turns on all switching elements on the pole side that is off controlled. It is characterized by controlling.
  • the motor can be subjected to three-phase short circuit control.
  • the motor can be subjected to three-phase short circuit control without flowing a large current to the short-circuited switch part.
  • FIG. 1 A block diagram showing an internal configuration of a HEV provided with a control device of a motor according to the present invention
  • FIG. 1 A block diagram showing a system for driving an electric motor 101 provided in the vehicle shown in FIG. 1
  • Figure shown The figure which shows a time-dependent change of each phase current shown in FIG. 3
  • FIG. 3 The figure which shows a time-dependent change of the direct current component of each phase current and each phase current which were shown in FIG.
  • FIG. 6 is a diagram showing a path of phase current when all switching elements 3b on the negative electrode side are controlled to be on reversely to FIG.
  • Diagram showing each phase current when inverter ECU 301 performs 3-phase short circuit control when inverter 201 has a short circuit failure Block diagram showing a system for driving a motor 101 including an inverter 203 of another form
  • Figure shown Diagram showing phase current when phase current sensor 401 fails Block diagram showing the internal configuration of another form of HEV Block diagram showing the internal configuration of HEV
  • a HEV Hybrid Electrical Vehicle: hybrid electric vehicle
  • a HEV travels by the driving force of an internal combustion engine and / or a motor.
  • FIG. 1 is a block diagram showing an internal configuration of a HEV provided with a control device of a motor according to the present invention.
  • the HEV (hereinafter simply referred to as "vehicle") shown in FIG. 1 includes a motor (MOT) 101, a capacitor (BATT) 103, an inverter (INV) 201, an internal combustion engine (ENG) 107, and a management ECU (MG ECU).
  • MOT motor
  • BATT capacitor
  • INV inverter
  • ENG internal combustion engine
  • MG ECU management ECU
  • FIG. 1 An engine ECU (ENG ECU) 117, a motor ECU (MOT ECU) 119, an inverter ECU (INV ECU) 301, a phase current sensor 401, a clutch 113, a gear box 109, a drive shaft 151 and , And a drive wheel 153.
  • Components other than inverter 201, inverter ECU 301, and phase current sensor 401 are the same as corresponding components provided in the vehicle of FIG. Therefore, in FIG. 1, the same reference numerals as in FIG. 14 denote the same constituent elements in FIG.
  • the driving force from the internal combustion engine 107 and / or the electric motor 101 is transmitted to the drive wheel 153 via the gear box 109 and the drive shaft 151 as in the vehicle shown in FIG.
  • the rotor of the electric motor 101 is directly connected to the drive shaft of the internal combustion engine 107. Therefore, when the internal combustion engine 107 is operated, the rotor of the motor 101 also rotates.
  • FIG. 2 is a block diagram showing a system for driving the electric motor 101 provided in the vehicle shown in FIG.
  • the motor 101 is, for example, a three-phase alternating current motor.
  • the storage battery 103 is a DC power supply, and supplies power to the motor 101 via the inverter 201.
  • the output voltage of the storage battery 103 is a high voltage (for example, 100 to 200 V).
  • the inverter 201 converts the direct current from the capacitor 103 into a three-phase alternating current.
  • the inverter 201 also has current detection units Seu, Sev, Sew that detect the current flowing through the switching elements 3a and 3b of each phase.
  • the current detection units Seu, Sev, and Sew are provided between the power supply terminal 2b on the negative electrode side and each switch unit 5b.
  • a signal indicating the current detected by the current detection units Seu, Sev, Sew is sent to the inverter ECU 301.
  • the inverter ECU 301 controls the inverter 201.
  • the inverter ECU 301 of the present embodiment has a DC component deriving unit 501, a short circuit failure judging unit 503, and a three-phase short circuit control unit 505. Details of the operation of each element will be described later.
  • the phase current sensor 401 is composed of three sensors that detect each phase current of the motor 101. A signal indicating each phase current detected by the phase current sensor 401 is sent to the inverter ECU 301. Components other than the current detection units Seu, Sev, Sew of the inverter 201, the inverter ECU 301, and the phase current sensor 401 shown in FIG. 2 are the same as the components shown in FIG. Therefore, in FIG. 2, the same reference numerals as in FIG. 15 denote the same components as in FIG.
  • the inverter ECU 301 performs PWM control of the inverter 201 so that the two switching elements 3a and 3b of each arm of the inverter 201 do not simultaneously turn on (conductive state).
  • the inverter ECU 301 transfers of electric power is performed between the capacitor 103 and the motor 101.
  • the inverter ECU 301 turns off all the switching elements of the inverter 201 and opens the contactor SW.
  • phase current of the motor 101 (U-phase current, V-phase when the vehicle shown in FIG. 1 is traveling only by the driving force from the internal combustion engine 107 and no control of the motor 101 is performed at all.
  • the current and the W phase current will be described.
  • the rotor of the motor 101 is directly connected to the drive shaft of the internal combustion engine 107. Therefore, when the internal combustion engine 107 is in operation, the rotor of the motor 101 also rotates. At this time, a back electromotive force is generated in the motor 101.
  • FIG. 3 shows the phase currents flowing through the inverter 201 at a certain moment when the switch portion 5 b provided on the negative electrode side of the arm 1 u of the inverter 201 has a short circuit failure when the back electromotive force is generated in the motor 101. It is a figure which shows a path
  • the switch portion has a short circuit failure, a phase current due to the back electromotive force generated in the motor 101 flows.
  • the direction of the phase current from the inverter 201 to the motor 101 is positive, and the direction of the phase current from the motor 101 to the inverter 201 is negative.
  • a U-phase current IU due to the back electromotive force flows through the switch portion 5b.
  • a V-phase current IV and a W-phase current IW having a phase difference of 120 degrees between positive and negative phases of the U-phase current IU flow through the free wheeling diode 4b of the portion 5b.
  • the DC component of the U-phase current IU is offset to the opposite polarity to the DC components of the V-phase current IV and the W-phase current IW, as shown in FIG.
  • the inverter ECU 301 of the present embodiment detects a short circuit fault of the inverter 201 based on the characteristics of each phase current at this time.
  • a signal indicating each phase current detected by the phase current sensor 401 is sent to the inverter ECU 301.
  • the DC component deriving unit 501 of the inverter ECU 301 derives the DC component value of each phase current.
  • the direct current component of the phase current is obtained by the inverter ECU 301 calculating an average value, an effective value or a central value of the phase current, or low-pass filtering the phase current.
  • the short circuit failure judging unit 503 of the inverter ECU 301 judges that the inverter 201 has a short circuit failure.
  • FIG. 6 is a diagram showing the path of the phase current when all the switching elements 3a on the positive electrode side are on-controlled in the state where the switch portion 5b on the negative electrode side of the U phase has a short circuit failure. Since the switching element subjected to the on control is in the conductive state, the motor 101 is in the three phase short circuit state.
  • the inverter ECU 301 maintains this state. Even after this, a large current does not flow in the short-circuited switch part.
  • the current flowing through the switching elements 3a and 3b of either phase depends on the charge amount of the smoothing capacitor C. That is, a current according to the charge amount of the smoothing capacitor C flows through the switch part having a short circuit failure and the on-controlled switching element provided on the opposite side to the switch part.
  • the rotation speed of the electric motor 101 rotated by the operation of the internal combustion engine 107 is high, the amount of charge accumulated in the smoothing capacitor C is large.
  • FIG. 7 is a diagram showing the path of the phase current when all the switching elements 3b on the negative electrode side are controlled to be on reversely to FIG. 6 in a state where the switch portion 5b on the negative electrode side of U phase has a short circuit failure. is there. Inverter ECU 301 maintains this state.
  • the inverter ECU 301 After the inverter ECU 301 according to the present embodiment detects a short circuit failure of the inverter 201, the inverter ECU 301 performs the three-phase short circuit control described above, whereby all phase currents have waveforms centered on 0 A as shown in FIG. It becomes.
  • a current detection unit Se may be provided between all the switch units 5b provided on the negative electrode side and the smoothing capacitor C.
  • the 3-phase short circuit control unit 505 of the inverter ECU 301 turns on all switching elements on either the positive electrode side or the negative electrode side of the inverter 203, the current detected by the current detection unit Se is less than the threshold. If there is, the inverter ECU 301 maintains that state. However, if the current detected by the current detection unit Se exceeds the threshold value, the three-phase short circuit control unit 505 of the inverter ECU 301 performs all the switching elements on the pole side that are on-controlled at this time. It performs off control, and performs on control of all switching elements on the opposite pole side.
  • switching elements having a current detection function are used as switching elements 3a and 3b of each phase, the current detection function of each switching element is used instead of current detection sections Seu, Sev, Sew or current detection section Se. It is good.
  • FIG. 10 is a block diagram showing a system for driving the electric motor 101, including an inverter ECU 303 having a short circuit failure polarity determination unit 507 that determines whether the switch unit in which the short circuit failure has occurred is on the positive electrode side or the negative electrode side.
  • a signal indicating each phase current detected by the phase current sensor 401 is sent to the inverter ECU 303.
  • the short circuit fault polarity determination unit 507 of the inverter ECU 303 determines the polarity of the switch section in which the short circuit fault has occurred, based on the positive and negative of each phase current value.
  • the short circuit fault polarity determination unit 507 of the inverter ECU 303 determines the polarity of the switch section in which the short circuit fault has occurred in accordance with whether the two phase currents having the same polarity are positive or negative among the three phase currents.
  • the 3-phase short circuit control unit 505 of the inverter ECU 303 is on the same polarity as the polarity of the switch unit in which the short circuit failure has occurred.
  • the switching element provided is turned on, and the switching element provided on the reverse pole side is turned off. At this time, a large current does not flow to the short-circuited switch part. Therefore, in this case, the 3-phase short circuit control unit 505 of the inverter ECU 303 does not have to switch on / off control of the switching element based on the current detected by the current detection unit Seu, Sev, Sew or Se.
  • the inverter ECUs 301 and 303 detect the short circuit fault based on the signal from the phase current sensor 401. Furthermore, the inverter ECUs 301 and 303 perform on / off control of each switching element of the inverters 201 and 203 so that the motor 101 is in a three-phase short circuit state without a large current flowing in the short-circuited switch part. As described above, according to the present embodiment, even when control of the motor 101 is stopped, it is possible to detect a short circuit failure of the inverters 201 and 203 and perform three-phase short circuit control.
  • the inverter ECUs 301 and 303 according to the first embodiment may not be able to accurately detect a short circuit fault of the inverters 201 and 203 when the phase current sensor 401 breaks down. For example, as shown in FIG. 12, when a failure occurs in which phase current value detected by phase current sensor 401 is fixed to a value larger than threshold value Ith shown in FIG. The ECUs 301 and 303 misjudge that a short circuit failure has occurred in the inverters 201 and 203.
  • Inverter ECUs 301 and 303 according to the first embodiment described above determine that inverters 201 and 203 have a short circuit failure when at least one of the absolute values of the DC component values of the three phase currents exceeds threshold value Ith. .
  • the inverter ECU 305 according to the second embodiment compares the absolute values of the DC component values of the three phase currents with the threshold value Ith according to which of the following cases corresponds to the short circuit fault of the inverters 201 and 203. To judge.
  • Case 1 All of the absolute values of the DC component values of the three phase currents exceed the threshold Ith.
  • Case 2 Of the absolute values of the DC component values of the three phase currents, two exceed the threshold Ith and the remaining one is below the threshold Ith.
  • Case 3 Of the absolute values of the DC component values of the three phase currents, one exceeds the threshold Ith and the remaining two are below the threshold Ith.
  • the inverter ECU 305 determines that the phase current sensor 401 is normal and a short circuit failure has occurred in the inverters 201 and 203. After that, the inverter ECU 305 performs three-phase short circuit control of the motor 101 as in the first embodiment.
  • the inverter ECU 305 determines that a short circuit failure has occurred in the inverters 201 and 203. At this time, although a short circuit failure has occurred in inverters 201 and 203 in inverter ECU 305, one of the three absolute values is less than or equal to threshold value Ith because one of the sensors constituting phase current sensor 401 has a failure. I judge that there is. At this time, there is a possibility that two of the sensors constituting phase current sensor 401 have a failure, but inverter ECU 305 regards motor 201 as a three-phase, assuming that a short circuit failure has occurred in inverters 201 and 203. Control short circuit.
  • the inverter ECU 305 determines that a short circuit failure has not occurred in the inverters 201 and 203. At this time, inverter ECU 305 determines that one of the three absolute values exceeds threshold value Ith because one of the sensors constituting phase current sensor 401 is broken.
  • the inverter ECU 305 determines the short circuit fault of the inverters 201 and 203 in view of the state of the phase current sensor 401, the short circuit fault of the inverters 201 and 203 can be detected more accurately. .
  • the rotor of the electric motor 101 is directly connected to the drive shaft of the internal combustion engine 107.
  • the drive shaft of the internal combustion engine 107 is connected to the gear box 109 and the drive shaft 151 via the clutch 113, and the drive shaft of the motor 101 is not via the clutch 113. It may be a vehicle connected to 151.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Electric Motors In General (AREA)
PCT/JP2009/068784 2008-12-26 2009-11-02 電動機の制御装置 WO2010073819A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN200980151526.7A CN102257724B (zh) 2008-12-26 2009-11-02 电动机的控制装置
EP09834623A EP2372900A4 (en) 2008-12-26 2009-11-02 MOTOR CONTROL DEVICE
BRPI0923687-2A BRPI0923687A2 (pt) 2008-12-26 2009-11-02 sistema de controle de motor elétrico
US13/139,353 US8598826B2 (en) 2008-12-26 2009-11-02 Electric motor control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008333639A JP4968698B2 (ja) 2008-12-26 2008-12-26 電動機の制御装置
JP2008-333639 2008-12-26

Publications (1)

Publication Number Publication Date
WO2010073819A1 true WO2010073819A1 (ja) 2010-07-01

Family

ID=42287444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/068784 WO2010073819A1 (ja) 2008-12-26 2009-11-02 電動機の制御装置

Country Status (6)

Country Link
US (1) US8598826B2 (zh)
EP (2) EP2372900A4 (zh)
JP (1) JP4968698B2 (zh)
CN (1) CN102257724B (zh)
BR (1) BRPI0923687A2 (zh)
WO (1) WO2010073819A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015223050A (ja) * 2014-05-23 2015-12-10 ファナック株式会社 インバータ及び動力線の故障検出機能を備えたモータ駆動装置
EP3121958A4 (en) * 2014-03-18 2017-11-29 Hitachi Construction Machinery Co., Ltd. Working machine
CN107968617A (zh) * 2016-10-20 2018-04-27 三菱电机株式会社 旋转电机的控制装置以及控制方法
CN112083348A (zh) * 2020-07-24 2020-12-15 苏州汇川联合动力系统有限公司 电机单相对地短路的检测方法、系统和存储介质

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5365431B2 (ja) * 2009-09-04 2013-12-11 三菱電機株式会社 エレベータの制御装置
JP4962583B2 (ja) * 2010-03-11 2012-06-27 株式会社デンソー 電力変換システムの放電制御装置
JP5923955B2 (ja) * 2011-12-06 2016-05-25 株式会社デンソー 多相回転機の制御装置
JP5465269B2 (ja) * 2012-03-29 2014-04-09 三菱電機株式会社 故障検出回路を備えた電動機駆動装置および電動機駆動装置の故障検出方法
WO2013145486A1 (ja) * 2012-03-30 2013-10-03 富士電機株式会社 交流電機システム及びその制御方法
JP5945692B2 (ja) * 2012-07-03 2016-07-05 パナソニックＩｐマネジメント株式会社 インバータ装置
CN103066556B (zh) * 2012-12-04 2017-03-29 联合汽车电子有限公司 高压直流系统的过压保护方法
JP6155708B2 (ja) * 2013-03-08 2017-07-05 株式会社ジェイテクト モータ制御装置
JP5876846B2 (ja) * 2013-03-13 2016-03-02 東芝三菱電機産業システム株式会社 電動機駆動装置
FR3005222B1 (fr) * 2013-04-26 2015-04-17 Valeo Sys Controle Moteur Sas Architecture electronique pour la commande d'un convertisseur de tension continu/alternatif
JP6056734B2 (ja) * 2013-10-25 2017-01-11 トヨタ自動車株式会社 車両制御装置
US9071187B2 (en) * 2013-11-06 2015-06-30 GM Global Technology Operations LLC Method and apparatus for increasing a current sensing range in a polyphase motor system
DE102013226560A1 (de) 2013-12-19 2015-06-25 Robert Bosch Gmbh Vorrichtung und Verfahren zum Betreiben einer elektrischen Maschine
US9889880B2 (en) 2014-03-11 2018-02-13 Nsk Ltd. Motor control device, electric power steering device using same, and vehicle
CN105531921B (zh) * 2014-04-03 2018-08-28 富士电机株式会社 安全控制装置
JP6327141B2 (ja) * 2014-12-24 2018-05-23 トヨタ自動車株式会社 電動車両
KR102281672B1 (ko) * 2015-04-02 2021-07-27 주식회사 만도 Ｅｐｓ 전자제어장치 및 제어방법
JP6237699B2 (ja) 2015-05-25 2017-11-29 トヨタ自動車株式会社 異常検出装置
EP3131198B1 (en) * 2015-08-10 2022-06-08 Goodrich Actuation Systems Limited Control strategy of a dual lane fault tolerant permanent magnet motor to reduce drag torque under fault condition
JP6252569B2 (ja) * 2015-09-10 2017-12-27 トヨタ自動車株式会社 ハイブリッド車両
JP6518604B2 (ja) * 2016-02-24 2019-05-22 本田技研工業株式会社 電源装置、機器及び制御方法
JP6461838B2 (ja) * 2016-02-24 2019-01-30 本田技研工業株式会社 電源装置、機器及び制御方法
JP6642201B2 (ja) * 2016-03-30 2020-02-05 株式会社デンソー モータ制御装置及びモータ制御プログラム
JP2017190029A (ja) * 2016-04-12 2017-10-19 トヨタ自動車株式会社 ハイブリッド車両の制御装置
JP6418196B2 (ja) * 2016-04-15 2018-11-07 トヨタ自動車株式会社 電気自動車
JP6610586B2 (ja) * 2017-03-13 2019-11-27 トヨタ自動車株式会社 駆動装置
JP6824103B2 (ja) * 2017-04-25 2021-02-03 三菱電機株式会社 電力半導体装置および電力半導体駆動システム
WO2019049188A1 (ja) * 2017-09-05 2019-03-14 株式会社日立製作所 交流電動機の監視装置および監視方法、ならびに電動機駆動システムの監視装置および監視方法
DE102017218189A1 (de) * 2017-10-12 2019-04-18 Zf Friedrichshafen Ag Sicherer Zustand einer elektrischen Maschine
JP6947016B2 (ja) * 2017-12-26 2021-10-13 株式会社デンソー 電動車両
JP7006428B2 (ja) * 2018-03-23 2022-01-24 株式会社デンソー モータ制御装置
CN112848900A (zh) * 2019-11-26 2021-05-28 松下知识产权经营株式会社 车辆驱动装置
TWI721829B (zh) * 2020-03-18 2021-03-11 李岳翰 於車輛停止時增加車輪阻力的方法及車輛增阻裝置
US20240136915A1 (en) * 2021-04-14 2024-04-25 Mitsubishi Electric Corporation Power converter and control method for power converter
JP2023040951A (ja) * 2021-09-10 2023-03-23 日立Astemo株式会社 モータ駆動装置および電動車両

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006184160A (ja) * 2004-12-28 2006-07-13 Nissan Motor Co Ltd 故障検出機能付き三相交流電動機の電流検出装置
JP2007118680A (ja) * 2005-10-26 2007-05-17 Mitsubishi Electric Corp 自動車用動力制御装置
JP2007312588A (ja) * 2006-04-20 2007-11-29 Denso Corp 多相回転電機の制御装置
JP2008011683A (ja) * 2006-06-30 2008-01-17 Toyota Motor Corp モータ駆動装置
JP2008220045A (ja) 2007-03-05 2008-09-18 Honda Motor Co Ltd 電動機の制御装置および車両

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0759384A (ja) * 1993-08-19 1995-03-03 Toshiba Corp インバータ装置
US5998880A (en) * 1997-08-07 1999-12-07 General Electric Company AC locomotive operation without DC current sensor
JP4000866B2 (ja) * 2002-02-22 2007-10-31 アイシン・エィ・ダブリュ株式会社 駆動用電源装置及びフェール判定方法
US6683435B1 (en) * 2002-06-21 2004-01-27 Ford Motor Company Electrical machine drive method and system
US7276871B2 (en) * 2005-07-25 2007-10-02 Honeywell International, Inc. System and method for fault protection for permanent magnet machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006184160A (ja) * 2004-12-28 2006-07-13 Nissan Motor Co Ltd 故障検出機能付き三相交流電動機の電流検出装置
JP2007118680A (ja) * 2005-10-26 2007-05-17 Mitsubishi Electric Corp 自動車用動力制御装置
JP2007312588A (ja) * 2006-04-20 2007-11-29 Denso Corp 多相回転電機の制御装置
JP2008011683A (ja) * 2006-06-30 2008-01-17 Toyota Motor Corp モータ駆動装置
JP2008220045A (ja) 2007-03-05 2008-09-18 Honda Motor Co Ltd 電動機の制御装置および車両

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2372900A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3121958A4 (en) * 2014-03-18 2017-11-29 Hitachi Construction Machinery Co., Ltd. Working machine
JP2015223050A (ja) * 2014-05-23 2015-12-10 ファナック株式会社 インバータ及び動力線の故障検出機能を備えたモータ駆動装置
CN107968617A (zh) * 2016-10-20 2018-04-27 三菱电机株式会社 旋转电机的控制装置以及控制方法
CN107968617B (zh) * 2016-10-20 2020-08-14 三菱电机株式会社 旋转电机的控制装置以及控制方法
CN112083348A (zh) * 2020-07-24 2020-12-15 苏州汇川联合动力系统有限公司 电机单相对地短路的检测方法、系统和存储介质

Also Published As

Publication number Publication date
CN102257724B (zh) 2014-05-21
EP2546980A2 (en) 2013-01-16
US8598826B2 (en) 2013-12-03
JP2010158089A (ja) 2010-07-15
US20110241589A1 (en) 2011-10-06
BRPI0923687A2 (pt) 2020-08-11
JP4968698B2 (ja) 2012-07-04
EP2372900A1 (en) 2011-10-05
EP2546980B1 (en) 2014-03-19
EP2546980A3 (en) 2013-06-26
EP2372900A4 (en) 2012-06-06
CN102257724A (zh) 2011-11-23

Similar Documents

Publication Publication Date Title
JP4968698B2 (ja) 電動機の制御装置
JP4757815B2 (ja) 電動機の制御装置および車両
US8045301B2 (en) Motor drive device
US8779706B2 (en) Control apparatus for rotary electric machines
JP4926222B2 (ja) 車両用電力変換器の制御装置
US8884577B2 (en) Control apparatus for rotary electric machines
US9054626B2 (en) Motor control apparatus
US20090195199A1 (en) Motor drive device
JP4772104B2 (ja) 電力変換装置
JP2019198139A (ja) 電力変換器の制御回路
WO2018181929A1 (ja) 車両
JP2019122238A (ja) モータ制御装置およびモータ制御装置の制御方法
JP2019134590A (ja) インバータ制御装置
WO2019044112A1 (ja) 電力変換装置、モータ駆動ユニットおよび電動パワーステアリング装置
US20150015168A1 (en) Vehicular driving system
JP6289597B1 (ja) 車両用電源装置および車両用電源装置の制御方法
JP5578033B2 (ja) 負荷駆動装置および車両
JP2008228504A (ja) 車両駆動システム
WO2022168868A1 (ja) 回転電機制御システム
JP6854429B2 (ja) 車両駆動装置
JP2009219225A (ja) 車両駆動システム
JP5269567B2 (ja) 電動機の制御装置及び車両
JP2015220786A (ja) 回転電機の駆動装置
US20240136957A1 (en) Device and method for controlling inverter, and steering system
JP2012065380A (ja) モータ制御装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980151526.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09834623

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 13139353

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2009834623

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 4515/CHENP/2011

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: PI0923687

Country of ref document: BR

ENP Entry into the national phase

Ref document number: PI0923687

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20110624